固态磁性导论 英文版【2025|PDF|Epub|mobi|kindle电子书版本百度云盘下载】

固态磁性导论 英文版PDF格式电子书版下载

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1．A Historical Introduction1

2．Consequences of Fermi Statistics13

2.1 Quantum Statistics of Fermions13

2.2 Free Energy of the Fermi Gas16

3．Paramagnetism25

4．Energy Bands in the Crystal31

5．Experimental Basis of Ferromagnetism37

5.1 Nickel Alloys42

5.2 Iron Alloys43

5.3 Palladium Alloys44

5.4 Iron-Nickel Alloys44

5.5 Effects of Strong Magnetic Fields44

5.6 Effects of High Pressure46

5.7 Effects of Finite Temperature47

5.8 Susceptibility above Tc47

5.8.1 Susceptibility of"Classical Spins"48

5.9 Critical Exponents50

5.10 Neutron Diffraction51

5.11 Further Experimental Methods52

6．Weiss Molecular Field Model53

6.1 Rhodes-Woblfarth Plot59

7．Heisenberg Model63

7.1 Magnon Operators63

7.2 Heisenberg Hamiltonian in Magnon Variables66

7.3 Magnon Dispersion Relation67

7.3.1 Specific Heat of Magnons69

7.3.2 Ordering Temperature70

7.4 Approximations for the Heisenberg Model71

7.4.1 Ising Model71

7.4.2 XY Model72

7.4.3 Mean Field Solutions of the Heisenberg Model73

8．Itinerant Electrons at 0 K75

8.1 Pauli Susceptibility of the Itinerant Electrons80

8.2 Susceptibility of the Interacting Itinerant Electrons80

8.3 Non-linear Effects83

8.4 Effects of High Fields at 0 K83

8.4.1 Non-magnetic Limit84

8.4.2 Strong Ferromagnets85

8.4.3 Weak Ferromagnets85

8.4.4 bcc Iron and hcp Cobalt85

8.4.5 Extremely High Fields87

8.4.6 Metamagnetism87

8.5 Susceptibility of Paramagnetic Alloys89

9．Band Gap Theory of Strong Ferromagnetism93

9.1 Magnetism of Alloys97

10．Magnetism and the Crystal Structure-Covalent Magnetism101

10.1 Crystal Structure of Mn,Fe,Co,and Ni103

10.2 Covalent Magnetism105

10.3 Covalent Polarization111

11．Magnetic Impurities in an Electron Gas117

11.1 Impurity Potential in the Jellium117

11.2 Strong Perturbations in the Jellium119

11.3 Layer and Line Defects119

11.4 Magnetic Impurities and Oscillations of the Magnetization120

12．Itinerant Electrons at T＞0:A Historical Survey123

12.1 Excitations at Low Temperatures127

12.1.1 Strongly Ferromagnetic Systems127

12.1.2 Weakly Ferromagnetic Systems129

12.2 Stoner Theory for a Rectangular Band130

12.3 Weak Excitations with ζ＜＜1132

13．Hubbard Model135

13.1 Beyond Hartree-Fock137

14．Landau Theory for the Stoner Model139

14.1 General Considerations139

14.2 Application to the Stoner Model141

15．Coupling Between Itinerant and Localized Moments147

16．Origin of the Molecular Field151

16.1 Heitler-London Theory for the Exchange Field151

16.1.1 Magnetism of a Spin Cluster156

16.1.2 Spinwaves for Localized Electrons158

17．Exchange and Correlation in Metals161

17.1 Free Electron Gas161

17.2 Tightly Bound Electrons163

18．Spin Fluctuations169

18.1 Fluctuations of a Thermodynamical Variable170

18.2 Fluctuations of the Magnetic Moment171

18.3 Specific Heat of the Spin Fluctuations177

18.4 Magneto-Volume Coupling177

18.5 Applications of the Spin Fluctuation Model179

18.6 Comparing the Spin-Fluctuation and the Stoner-Model182

19．Single Particle Excitations Versus Spin Waves185

20．Landau-Ginzburg Model for Spin Fluctuations191

21．Conclusion and Lookout199

A．Appendices203

A．Convexity Property of the Free Energy203

B．Derivation of the Coefficient a in (3.17)203

C．Quenching of the Orbital Momentum206

D．Properties of"Classical"Spins208

E．Derivation of the Constant c in(8.24)210

F．Ornstein-Zernicke Extension211

G．Bogoliubov-Peierls-Feynman Inequality213

H．The Factor 2 in Equation(7.27)214

I．Hund's Rules216

J．Polynomial Coefficients in(18.12)218

K．Conversion Between Magnetic Units219

References221

Index227